Question

A dot plot titled Mister Hart'students going from 0 to 8. 0 has 1 dot, 1 has 0 dots, 2 has 2 dots, 3 has 2 dots, 4 has 1 dot, 5 has 4 dots, 6 has 2 dots, 7 has 1 dot, 8 has 2 dots. A dot plot titled Misses Perry's Students going from 0 to 8. 0 has 2 dots, 1 has 4 dots, 2 has 1 dot, 3 has 3 dots, 4 has 2 dots, 5 has 1 dot, 6 has 1 dot, 7 has 0 dots, 8 has 1 dot.
The data plots represent the hours students study each week in two different classrooms.



The mean number of hours a student in Mr. Hart’s class studies is
hours.
The mean number of hours a student in Ms. Perry’s class studies is
hours.
A typical student in Mr. Hart’s class studies
a typical student in Ms. Perry’s class.

Answer 1

Given  : A dot plot titled Mister Hart's students going from 0 to 8. 0 has 1 dot, 1 has 0 dots, 2 has 2 dots, 3 has 2 dots, 4 has 1 dot, 5 has 4 dots, 6 has 2 dots, 7 has 1 dot, 8 has 2 dots. A dot plot titled Misses Perry's Students going from 0 to 8. 0 has 2 dots, 1 has 4 dots, 2 has 1 dot, 3 has 3 dots, 4 has 2 dots, 5 has 1 dot, 6 has 1 dot, 7 has 0 dots, 8 has 1 dot.

 hours students study each week in two different classrooms.

To Find : The mean number of hours a student in Mr. Hart’s class studies is

hours.

The mean number of hours a student in Ms. Perry’s class studies is

hours.

A typical student in Mr. Hart’s class studies  ( => Median hrs)  

a typical student in Ms. Perry’s class.    ( => Median hrs  )

Solution:

Mister Hart's students

Hours        Students       Hours * students        CF

0                    1                          0                          1

1                     0                         0                          1

2                    2                         4                          3

3                    2                         6                          5

4                    1                          4                           6

5                    4                        20                          10

6                    2                        12                          12

7                     1                         7                           13

8                    2                         16                        15      

                   15                         69

Mean = 69/15  = 4.6 hrs

Median =  5 hrs  

Misses Perry's Students

Hours        Students       Hours * students        CF

0                   2                          0                         2

1                    4                         4                         6

2                   1                          2                          7

3                   3                         9                         10

4                   2                         8                         12

5                    1                         5                        13

6                    1                         6                          14

7                    0                        0                         14

8                    1                         8                         15      

                   15                         42

Mean = 42/15  = 2.8 hrs

Median =  3 hrs    

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Answer 2

Answer:

Hope this helps you!!!!

Step-by-step explanation:

The mean number of hours a student in Mr. Hart’s class studies is

✔ 4.6

hours.

The mean number of hours a student in Ms. Perry’s class studies is

✔ 2.8

hours.

A typical student in Mr. Hart’s class studies

✔ more than

a typical student in Ms. Perry’s class.